Regulating-cock.



UNITED STATES PATENT OFFICE. wuiuax itzw'rou star. or new roan. I. r.

lpeetloattoa of Letters Patent.

Patent-ed Feb. l, 1910.

Application lied September 88, 1008. ierlal Io. 870,157.

To all whom it ma| concern:

Be it known t at I, Wiiaaax Naw'ros" Burns citizen of the United States, residing at and whose post-oflice address is No. 136 Washington avenue, borough of Brooklyn, Kings county, city and State ot New York, have invented a new and useful Regulating- :ioclt, of which the following is a specifica- Miinvention relates to improvements in regu ting cocks, its object being to provide an improved construction of the same adapted for use especially for thick, heavy iiquids, such as tar or oil, and consists in the features of construction hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure 1 is an elevation of my improved cock; Fi 2 a plan view of the same, Fig. 3 a centra lon itudinal section, l-ig. 4 a detail, partial, ongitudinal section of the plug, and Fig. 5 is a crosa section of the same.

. In the drawings, A represents a valve casin having inlet and outlet ports 2 and 3. Into this casingis titted a conical plug B hold to its seat by a spiral spring 4, itael-i seated in a cap not 5, and bearing upon the head of the pin Around the cylindrical part 6 of the. ma ler end of the plu is titted a suitable packin 7. as of wic ing and litharge, a squa end 8 hein adapted to receive the operating handle The-plug is hollow as shown .in Fig. 4, and is provided with oppositely disposed inlet nd outlet ports 10 and 11. The port 10; in the form of an isosceles triangle, the base of the triangle being parallel with the axis! the plug], and the other sides of the t angle 've edinwardly so as to present a cutting edge along the exposed sides of the opening to the incoming fluid to preient its clogging. as shown in Fig. 5. The slide 12 is udjustubly secured to the \nlw casing by means of :i were lit. bit-h slide carries a set screw 14 threaded into a lug l5. hav'. .g hinged connection lti with the slide 12. to permit of its being turned bodily backoard on the slide when desired to remove it from the path of movement of the handle 9. the adjustment of the arrows It! and H the throw of the handle in the opening more port for the purpose of permitting ment of the cock is limited by the engagement of the point of the screw l-l \\-ith the depending log 17, who-h log is V shaped in cross sections to otl'cr a surer engagingl in. the opposite direction to lessen the tlow By means of the hinge connection-oft stop screw 14 with its sup ort, by minus of which it can be throw? ail-k out o engaging position with he an e, the handle can be turned to fully open the P then-through of an clogging matter which may be contained n the liquid; the outlet port of the lug being larger than the inlet, no clog ing action can therefore take place there. he depending lu engage the stop 19 when t ie handle is turned momentar'ilg. e

to close the cock to prevent its being thrown too for.

As shown in Fig. 2 I prefer to provide the handle 9 with a slit 20 connected with the angular openin fitted to the squared end 8 of the plug, Wlllth slit is closed ther by means of a screw 21 after the iandle is placed in position so as to clamp the same it ion the plug. The V shaped cutting ed 0 o the inlet. opening of the lug presentst 0 minimum of frictional aur ace to resist the [low of the liquid, which .is an important consideration in the cane of heavy oils, tar and the like. l claim:

1. In combination with a cock of the class described, an adjustable stop adapted to limit. the opening movement of the cock an adjustable support for said stop, am a swinging connection between said stop and support adapted to permit said stop to be thrown out of engaging position with said cock.

2. In combination with a valve of the class described. an operating handle havi a depending V shaped log, a log having a jnstalde hinged so iport on the valve casing, and n crew tlm-m cu in said hinged lug and adapted t be engaged by said depending lug to limit the opening m vement of Raid min.

In \\l'ltt' h hereof. l have hereunto set.

ntflnilid at the city of \ew York. this 1.9

18 is adapted to e ee x 

